energy: the ability to cause change
The official definition for kinetic energy is "energy that a body possesses by virtue of being in motion."
The official definition for the word group velocity is "the speed at which the energy of a wave travels."
The official definition of the word bolometer is "a sensitive electrical instrument for measuring radiant energy."
The official definition of the word libido is "The psychic and emotional energy associated with instinctual biological drives."
I am not sure whether it is the official definition, but I like to think of work as a transfer of mechanical energy.
The definition of Heat Energy is The energy created by conduction. : )
The answer to the definition "having 2 official languages" is "official bilingualism". Official bilingualism is in place in countries like Canada and Puerto Rico, which have two official languages.
well a good definition is solar energy
The official drug which is listed in pharmacopoeia where the non official is not listed in it
Radiant energy
Definition of conventional and non conventional energy
There is no appropriate definition of energy on the list that follows the question.